Knob-rose.



No. 723,951. PATENTED MAR. 31, 19703. H. G. VOIGHT.

KNOB ROSE.

APPLICATION FILED JUNE 10, 1902.

N0 MODEL.

- Q Q V 7Z9? I f W I UNITED STATES PATENT OFFICE.

HENRY G. VOIGHT, OF NEW BRITAIN, CONNECTICUT, ASSIGNOR TO THE RUSSELL &ERWIN MANUFACTURING COMPANY, OF NEW BRITAIN,

CONNECTICUT.

KNOB-ROSE.

SPECIFICATION forming part of Letters Patent N 0,723,951 dated March 31,1903.

I Application filed June 10, 1902.

To c'tZZ whom it may concern:

Be it known that I, HENRY G. VCICHT, a citizen of the United States,residing at New Britain, in the county of Hartford and State ofConnecticut, have invented certain new and useful Improvements inKnob-Roses, of which the following is a specification.

My invention relates to improvements in knob-roses for door-latches andthe main object of my improvement is to provide a supplemental springfor turning thelatch-spindle, which supplemental spring is mounted inthe rose, so that it is only necessary to apply the rose to the door inorder to provide the knob spindle with the supplemental spring.

In the accompanying drawings, Figure 1 is a front elevation of myknob-rose. Fig. 2 is a sectional view of the same on the line a; as ofFig. 1. Fig. 3 is a rear elevation of the same with the cap-plateremoved. Fig. 4 is a detached view of the said removed capplate, andFig. 5 is a detached side elevation of the supplemental spring and itshub.

The front side of the rose Ais of any ordi nary construction. Projectingfrom the rear side of the rose there is a rim or flange 6, thatconstitutes the edge of a small case for a hub and spring, the portionof the rose within the circle of the said rim forming the front of thesaid small case. vided with threelugs 7 7 7, that serve as means forattaching the cap-plate 8, that forms the rear side of the said smallcase. This capplate is of a diameter large enough to rest on the rearedge of the rim 6 and is notched or reduced at the edge to form thethree re cesses 9, that receive the lugs 7, and the bottom of thenotches are preferably beveled back on their outer face, as shown inFig. 4. The cap-plate is secured in place by heading down or rivetingthe ends of the lugs 7, so that the said cap-plate then becomes, ineffect, a permanent part of the rose. I have thus described thecap-plate and its manner of at tachment only for the sake of describinga practical form of the device; but the particular detail constructionand'man'ner of attaching the'cap-plate to the back side of the smallcase on the rose is not essential to my invention. On the inner side ofthe rim there This rim, as shown, is pro- Serial No. 110,958. (Nomodel.)

center of the rose and center of the cap-plate.

At one side of the spring-hub there is a hooked arm 14, one member ofwhich stands parallel to the side of the spring-hub at a little distance therefrom, so as to leave a space between. A spring 15 is coiledaround this hub under tension, the said spring being provided withhooked ends 16, whereby the ends of the spring after passing through thespace be tween the body of the hooked arm lei and side of the spring-hub10 may extend outwardly and bear upon the opposite edges of the body ofthe said hooked arm and extend radially beyond the said arm, as bestshown in Figs- 3 and 5. After the spring is thus assembled on thespring-hub and before the cap-plate is secured to the rose the saidspring-hub and spring are inserted within the small case,with theprojecting ends of the spring bearing upon the opposite shoulders orside edges of the rib 13, as shown in Fig. 3. The cap-plate may then besecured in place, as before described, and the rose is complete, withthe spring-hub and spring properly mounted in suitable journal-bearings, all ready for applying the rose to a door in connectionwith any ordinary knob-latch having a spring for projecting itslatch-bolt. Ordinarily the springs in these latches for projecting thelatch-bolt are purposely made very light and easy and will answer allpurposes where the knob is symmetrical and round so as to work easily.In some cases, however,an irregular form of knob or a knob lever isdesired, and the ordinary latch-spring may not be sufficient to lift theknob-lever to its proper position and to also throw out the latch-bolt.My rose is especially designed for use in connection with theseknob-spindle may be inserted through the spring-hub in the rose as wellas through the latch-hub and the supplemental spring will insure theproper working of the latch-bolt.

It will be seen that turning the knob-spindie in Fig. 3 so as to carrythe hooked arm of the spring-hub toward the right will carry with itthat end of the spring which is hooked over the right-hand side of thesaid arm, while the other end of the spring will be held in its fixedposition by its engagement with the left-hand shouldered edge of the rib13, so that the spring will be wound up under greater tension as theknob-spindle is thus turned. It is also obvious that when the knob isreleased the tension thus applied will return the knob and spindle toits normal position. Turning the knob-spindle in the opposite directionfrom its normal position (shown in Fig. 3) will in like manner put thespring under tension the same as before only the opposite ends of thespring are moved by turning the knob in opposite directions.

I am aware that supplemental springs of a different construction frommine have been applied to a door before the rose is placed in positionthereon and for the purpose'of assisting the ordinary latch-spring tooperate properly in connection with an irregular-shaped knob, and thesame is hereby disclaimed. By my improvement the complete rose, withspring and spring-hub, is produced at a small cost, the parts arefurnished in their assembled form, and no additional labor is requiredin putting-on the rose other than to merely counterbore the hole for theknobspindle.

It is apparent that some changes from the specific construction hereindisclosed maybe made, and therefore I do not wish to be understood aslimiting myself to the precise form of construction shown and described,but desire the liberty to make such changes in working my invention asmay fairly come within the spirit and scope of the same.

I claim as my improvement-- 1. The combination of aknob-rose, with thespring -hub and the double -acting spring mounted within and carried bythe said rose, substantially as described. 2. The combination ot'aknob-rose, with the spring-hub and the double-acting supplemental springmounted within the said rose and means for confining the said hub andspring within the said rose, substantially as described.

3. The combination of a knob-rose, having an axial bearing for aspring-hub with the double -acting spring-hub journaled within the saidaxial bearing of the said rose, and a double-acting spring between thesaid springhub and rose.

HENRY G. VOIGHT.

Vitnesses:

M. S. WIARD, WV. E. WIGI-ITMAN.

